Hanger for incandescent lamps.



No. 853,444. PATENTED MAY 14, v190'?. M. J. DIBMMER.

HANGER FOR INCANDESCENT LAMPS. APPLIoATIoN FILED FEB. ze, 1906.

JNVENTOR PATENT OFFICE.

MAXIMILLIAN J. DIEMMER, AUGUSTA. GEORGIA.

HANGER FOR INCANDESCENT LAMPS.

Specification of Letters Patent.

Patented May 14, 1907.

Application sie@ February 26,1906. seria No. 303,027.

To a/ZZ whom it may concern:

Be it known that `I,4 MAXIMILLIAN J. DiiiMMER, a citizen of the United States, residin at Augusta, in the county of Richmon .and State of Georgia, have invented a new and useful Hanger for Incandescent Iamps, of which the following is a'specificaion.

This invention relates to hangers for incandescent lamps and has for its object to provide a hanger designed for attachment to a ceiling or other suitable support and by means of which the lamp 'may be conveniently raised or lowered, and supported at anyv desired height.`

A further object vide a hanger having a sprin actuated drum or roller to. which is attached the flexible lamp supporting cord so'that the cord may be exten ed to permit the positioning of the lam in any' desired ortion of the room, sai cord being woun upon the drumto elevate the lamp by the actuating spring.

A further object of the invention 1s to generally im rove this class of devices so as to add to t eir utility, and durability as well as to reduce the cost of manufacture.

. With these and other objects in view the invention consists in the construction and novel combination and arrangement of parts hereinafter fully'described and illustrated in the accompanying drawings, it being understood that various changes in form, proportion'and minor details of construction maybe resorted to within the scope of the lap ended claims.

n the accompanyingdrawings forming a part of this speciiicationz-Figure 1 is 'a longitudinal sectional view of a lamp constructed in accordance with m invention. Fig. 2

is an enlarged longitudinal sectional view.y

3 is an end view of the movable contact plate or member. Fig. 4 is a similar view :of a stationary contact member. Fig. 5`is a detail sectional view illustrating a modiied form ofthe invention.

Similar numerals of reference indicate corlresponding parts in all ofthe figures of the drawings.

v The device'consis'ts of a supporting frame ceiling or other suitable support 6 by hooks`7 engaging eyes 8 fastene to the -,ceiling as shown, or if desired the frame maybe securedv in position by screws, cleats or similar fastening devices.

of the invent-ion is to pro- Journaled in the frame 5 is a longitudinal shaft 9 to which is secured a drum or reel 10, having attached thereto a flexible supporting cord or conductor 11 carrying the lam 12.

Extendin transversely across the rame 5 at one end t ereof is a dia hra m 13 defining a chamber 14 and dispose wit said chamber is a spring 15 one end of which is attached to-the adjacent end of the shaft 9 and the other end thereof secured to the frame in any suitable manner as by rivets, bolts, or other suitable fastening devices 16, so that when the drum is rotated by exerting a downward pull on the cord 11 the spring 15 will be ,wound up and when the cord is released the tension of the spring will rotate the drum in the opposite direction and thereby elevate the lamp. Secured to or formed integral with the diaphragm 13 is a ratchet wheel 17 and pivotally mounted on` the adjacent end of the drum 10 are locking pawls 18 adapted to engage the teeth on thee ratchet wheel 17 for locking the drum against rotation so as to support the lamp in. any desired position. Secured to the lopposite end of the drum 10 is a plate or disk 17 preferably formed of porcelain, gutta percha or other insulating mate- .'rial and to which is secured a pair of circular contact plates 19 and 20 disposed concentric with the shaft, as shown. The contact lates 19 and 20 are securedv to the disk 17 yinwardly extending pins 21 to which are fastened by binding screws 21 the terminals 22 and 23 of the conductor or fiexible cord 11.

Mounted on the shaft 9 yand spaced `from the moovable contacts 19 and 20 is a stationary plate or disk 24 also formed of insulatingy material and havin supporting brackets 25 secured thereto an j rollers 26 adapted to engage the contact plates 19 and 20. VThe brackets 25 are ormed with reduced extensionsor shanks 27 which extend through the-plate 24 and are secured thereto by binding screws ,28 to which are secured the terminals 29 and 30 of a 'lighting' circuit. Interposedy between the plate 24 and the adjacent lend of the frame 5 1s aspring 31the opposite ends of which b ear lagainst the plate 24and serve to yieldably support the contact members 19 and 21. The springr 31 is preferably formed 'with `a centra en argement 32 having an opening formed. therein for the reception of the shaft 9 which serves to center the spring and 'prein which are journaled- IOO IIO

vent accidental displacement of the same. Suitable guide pins 33 may also be secured to the end of the supporting frame 5 for engagement with correspondingly shaped -o enings formed in the plate 24 whereby the atter is always maintained in parallel relation to the adjacent end of the frame.

Whenv it is desired to lower the lamp a longitudinal pull is. exerted on theflexible conductorll which unwinds the conductor from the drum and at the same time contracts the sprin@r 15, the lamp being supported in adjustable position by engagement of the locking pawls 18 with the teeth on the ratchet teeth 17. In order to elevate the lamp it is merely necessary to exert a slight longitudi- `nal pull or jerk on the-conductor which releases the locking pawls 18, when the coiled spring 15 will rotate the drum and automat ically wind the cord or conductor thereon and elevate the lamp. It will thus be seen that when the lamp is either raised or lowered the current will flow from the terminal 30 through the shank 27 and contact roller to the concentric plateQO and thence through the pin 21 and terminal 23 to the lamp, the

circuit being completed through the terminal 212, plate 19 and adjacent contact roller, to the shank '.27 of said roller and thence to the terminal 29 of the lighting circuit. In order to cover and protect the supporting frame and operating mechanism a housing or casing 34 is secured'in any suitable manner to the ceiling or support 6, said casing being provided with an opening 35 for the reception of the flexible conductor 11, there being a simi laropening- 36 formed in the bottom of the supporting frame and preferably disposed in alinement with the opening 35 as shown.

' From the foregoing descriptionit is thought that the construction and operation of the devices will be readily 'understood by those skilled in the art, and further description thereof is deemed unnecessary.

In Fig. 5 of the drawings there is illustrated a modified form of the invention in which the guide pins are dispensed with and a coiled spring 35 is employed for yieldably supporting the rollers in engagement with the contact lates. l

If desire( the drum may be geared up in any suitable .manner speed of the same and the several parts plated, japanned or otherwise ornamented to give the hanger an attractive appearance.

Having thus described the invention what is claimed is 1. In a device of the class described, a supporting frame, a spring actuated drum journaled in the frame, a movable contact secured to and mounted for rotation with the drum, a stationary contact ada ted to en' gage the movable contact, a flexi le conductor carried by the drum and having its terminals connected with the movable contact,

- porting frame, a spring actuated drum jouradjacent en 'concentric plates secured so as to increase the` and means independent of the contacts for yieldably supporting the stationary contact in engagement with the movable contact.

2. In a device of the class described, a sup- 7o naled in the frame and'provided at one end thereof with a plurality of contacts mounted for rotation with the drum, a plate provided with contact rollers adapted to engage removablecontacts, a spring for yieldably supporting the rollers in engagement with the vmovable contacts, and a fiexible conductor carried by the drum and having its terminals connected to the movable contacts. l

3. In a device of the class described, a supporting frame, a spring actuated drum journaled in the frame andhaving a plurality of concentric plates secured thereto and forming contacts, a stationary plate spaced from the adjacent end of the drum and provided with contact rollers .adapted to engage concentric plates, means for yieldably supporting the rollersv in engagement with the contact lates, and a flexible conductor, the termina s of which are connected to concentric contact plates.

4. In a device of the class described, a-supporting frame, a spring actuated drum journaled in the frame and having a plurality of concentric plates secured to one end thereof and forming contacts, a disk spaced from thev adjacent end of the drum, rollers journaled on disk for engagement with the contact plates and providedwith threaded Shanks, screws engaging the threads on said shanks, av spring inter osed between the disk and the of the frame, and a flexible con.- ductor the terminals of which are connected to the contact plates.

5. In a device of the class described, a supporting frame, aspring actuated drum journaled in the frame and'j having a plurality of to one end thereof and forming contacts, a disk spaced from the adjacent end of the drum and provided with guide openings, rollers journaled on the disk and adapted to bear against the contacts, pins securedto the frame and engaging the guide openings, 'a s ring inter osed etween the disk and the a jacent en of the frame IIS for yieldably supporting the roller -in engagement with contacts, and a' Hexible conductor the terminals' of which are connected to the contact plates.I

' 6. Ina device of the (glass described, asup- 120 l porting frame, a shaft mounted for rotation on theI frame, a-druin secured to the shaft, a diaphragm extended across one endy of the frame and having a ratchet wheel` secured thereto, pawls pivoted to thev adjacent end of the drum and adapted to engage the ratchet wheel, a spring interposed between the dia'- phra In and the ad'acent end of the frame, and avin one en thereof secured to the shaft and t e opposite end thereof secured to 13o Ioo i cured to the opposite end of the the frame, a plurality of concentric lates sedium and forming contacts, a disk spaced from one end of the frame and provided with contact rollers adapted to bear against the concentric plates, a spring yieldably supporting the rollers in engagement with the contact plates, and a flexible conductor the terminals of which are connected to said contacts. 7. In a device of the class described, a supporting frame, a shaft journaled in the frame, a spring actuated drum carried bythe shaft an having one end thereof provided With concentric .Contact plates movable with' the drum, a disk spaced from one end of the frame and provided with contact rollers for engagement with the contact plates, and a spring inter osed between the disk and the adjacent en of the frame, Y a central perforated enlargement for the re ception of the shaft, sa'id spring being adaptv ed to yieldably support the rollers in engagement with the contact plates.

In testimony that I claim the foregolng as my own, I have hereto affixed my signature 1n the presence of two Witnesses.

MAXIMILLIAN J. DIEMMER. Witnessesz C. M. MILLER, D. B. DOWLING.

and provided With 

